Supercharge Your Innovation With Domain-Expert AI Agents!

A gyroscope control method and control system suitable for wide range

A control method and modal control technology, which is applied in the field of MEMS sensors, can solve the problems of performance deterioration and deterioration of accuracy, and achieve the effect of high sensitivity

Active Publication Date: 2019-07-23
BEIJING MXTRONICS CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the requirements of wide range, it can be achieved by expanding the range of the gyroscope. However, blindly increasing the range will lead to deterioration of its performance in terms of noise and zero bias, and will even worsen its performance in small-range applications. precision

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A gyroscope control method and control system suitable for wide range
  • A gyroscope control method and control system suitable for wide range
  • A gyroscope control method and control system suitable for wide range

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The control method and control system suitable for a wide-range vibrating structure gyroscope according to the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0032] Cylindrical, hemispherical or planar ring gyroscopes made of metal or silicon materials have better working characteristics due to their structural symmetry.

[0033] The ring vibration gyroscope works in a typical cos2θ vibration mode, such as figure 1 shown. The mode in which the horizontal direction and the vertical direction are the radial axes in the ring plane is the first mode. When the gyroscope is perpendicular to the ring surface, there is an angular rate input, that is, when the gyroscope rotates around the plane, the Coriolis force generated The energy is coupled to the second mode where the first mode intersects at 45°, and the expression of the Coriolis force is:

[0034] Fc=2m*v*Ω APP

[0035] Among them, m is t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method and a system applicable to controlling vibration-structure gyroscopes under wide-range application conditions. The method includes selecting set values V<0> of first-modal amplitude of the vibration-structure gyroscopes and using the set values V<0> as target amplitude of first modals during zero-angular-speed input; selecting angular speed thresholds omega; selecting different working modes according to the magnitudes of inputted angular speeds. The method and the system have the advantages that performance requirements during large-range work can be met without deterioration of precision during small-range application; requirements of diversified application fields on wide-range work can be met, and identical technical effects can be realized by the system for controlling the vibration-structure gyroscopes.

Description

technical field [0001] The invention belongs to the technical field of MEMS (Micro-Flectro Mechanical System) sensors, and in particular relates to a control method and a control system for a micro-mechanical vibration structure gyroscope used to detect the angular velocity of an object. Background technique [0002] In recent years, with the continuous development of micromechanical technology, vibrating structure gyroscopes have been widely used, among which gyroscopes with tuning fork, cylindrical, hemispherical and ring structures made of ceramics, metals, and silicon materials are the main ones. The unity of these gyroscopes is that they need an external driving force to excite the vibrating structure to vibrate at its own natural resonance frequency (the first motion mode, also called the carrier mode), and when there is an angular rate input on the sensitive axis, The action of the Coriolis force is generated, so that the motion of the first mode is coupled out of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01C19/56
CPCG01C19/56
Inventor 朱红张奇荣权海洋叶泽刚王浩
Owner BEIJING MXTRONICS CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com